Added check if repo has ending slash

Author: yvesh

src/JoomlaBrowser.php

@@ -335,6 +335,13 @@ public function installExtensionFromFolder($path, $type = 'Extension')
 		$I->waitForText('Extensions: Install','30', ['css' => 'H1']);
 		$I->click(['link' => 'Install from Folder']);
 		$this->debug('I enter the Path');
+
+		//Make sure path has an ending slash
+		if (substr($path, -1) != "/")
+		{
+			$path = $path . "/";
+		}
+
 		$I->fillField(['id' => 'install_directory'], $path);
 		// @todo: we need to find a better locator for the following Install button
 		$I->click(['xpath' => "//button[contains(@onclick,'Joomla.submitbutton3()')]"]); // Install button